SSG Series Strain Gauge Extensometers

Plastic Tensile Testing System

Shimadzu’s SSG series of strain gauge extensometers are compliant with ISO, JIS, and ASTM tensile test standards, including those for plastics and metallic materials

These lightweight, precision extensometers feature a wide elongation measurement range, while retaining the flexibility to measure using small gauge lengths, and support both rod and flat plate shaped specimens.

Consisting of an elongation sensor and amplifier, this extensometer is suitable for use with metals and hard plastic materials, and is fastened securely to specimens with screws.
Calibration using an extensometer calibrator allows the extensometer to meet JIS and ISO Class 0.5 and ASTM Class C standards for higher accuracy.

Elastic Modulus Measurements within 1 µm Accuracy - Compliant with Elastic Modulus Measurement Requirements of ISO 527, JIS K 7161, and Class B-2 for ASTM D638

Plastic tensile testing standards, represented by ISO 527, JIS K 7161, and ASTM D638, require high-accuracy displacement measurements.
The SSG series, widely used by plastics manufacturers, public testing institutions, and universities, meets the requirements of these plastic tensile testing standards.

ISO 527, JIS K 7161, and JIS K 7162 test standards require:

  • Extensometer elongation measurements with accuracy within 1% of the measured value.
  • Elastic modulus values based on a secant line or regression line between the two strain points of 0.0005 (0.05%) and 0.0025 (0.25%).

ISO 527, JIS K 7161, and JIS K 7162 Elastic Modulus Measurements

Satisfies Strain Control Requirements of ISO 6892 and JIS Z 2241

ISO 6892 and JIS Z 2241 detail test methods for determining the tensile strength of metallic materials. Included within these standards are two control methods for loading materials until they reach their yield point: a stress-rate controlled method and a constant strain-rate controlled method using an extensometer. ISO 6891-1 defines the strain rate control method as Method A, where testing using this strain rate control method is expected to become increasingly common.

Shimadzu’s SSG series extensometers are ideal for strain-rate control testing according to ISO 6892 and JIS Z 2241.


Model SSG10-10 SSG25-10 SSG50-10
Measurement range (mm/FS)  1.0,0.5,0.2,0.1
 Gauge length (mm)  10  25  50
 Max. measurement range (mm)  1  2.5  5
Max. specimen size (mm) Rod maximum diameter φ10 φ10 φ15
Flat plate width x thickness  W15×T10  W15×T10  W25×T14
Accuracy JIS Class 1 ASTM Class CMeasurement range up to 0.3 mm: ± 3 μmMeasurement range above 0.3 mm to max.: ±1.0% of indicated value Measurement range 0 to 0.13 mm: ±1 μmMeasurement range 0.13 mm to 0.3 mm: ±3 μmMeasurement range 0.3 mm to 5 mm: ±1.0% of indicated value
Operational temp. range 5 to 40°C (JIS guaranteed precision range: Fluctuation within ±2°C at 18 to 28°C)
 Weight      約75g
Power requirements ESA type amplifier: Single-phase 100 V to 240 V AC at 150 VA
(SGX type amplifier requires no power supply.)

For Research Use Only. Not for use in diagnostic procedures.

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